System of electrical distribution.



J. L. wooDBRIDGE.

SYSTEM 0F 'ELECTRICAL DISTRIBUTION.

APPLICATION FILED DEO, 6, 1909.

Ptend Jan.9,1912

fffw ma mit a resi' entof Philadelphia, the countyfo Philadelphia-fand' Sta'te of 'Pe'nnsylvania, A havel inventedxa-'certaiii new and useful System-ofsElectric'al Distribution, of which Jasmin .wocnBRInGE, orrnftAnnIJPI-L 4'PENNsrnvke'laire v I Specification otlletters Patent.

Patented .rant-9,1912.

that 1,1 Josnrrrf'I-J.

-j'i'the 'United States, and

' y' theffollowing 'is aspecicatiojni f;

'This-invention relates tojsystemsof which tributi'on vin which tvfo' different sources; electric'I-energyare supplying poyverto tv vo independent -consuingion 'circuits; either-Toril ve a iluctuating load,l

both of `whichf. inay and. wvhiehfio ranged to' regulat Qt Sf'laglefbatteryis arg1 he luctuations. on either circuit. 'j -Insome of-'this kind'reg'u-f.

lating apparatus has been inserted between" the battery and eachof' the circuits Whose Y loadis to be reg'ulated,leach of these are rangements of regulatin a p aratus .being directlyresponsive -to -valgiatiohs of load. on" the .particular circuit whichit visin'tended tol-'regulate but-not directly responsive .to fluctuations of load on'i the other circuit; Thev interfconnection betvve'en the two' cir` cuits. may permit iluctuations oi load .on one 1 tol be felt to a greater or less extent on the other and in such-case the regulating ap paratus which is responsive to the fluctuationson the second circuit will respond to,

cause the battery to. partially compensate for them In the present invention I'pr'ovide separate regulating aparatusfor controlling the operation of thelbattery in c o'nnection with each circuit, but-each of these pieces of regulating appara us isy made responsive to iluctuatlons of loaden both c irl, cuits in such a way that when 'a variation of load occurs'on one circuitthe apparatus for regulating the charge andi discharge ofthe battery in, connection 'with thatclirc'uit is caused to act'upon -the battery to relieve that 'circuit of the load fluctuation and at the same time the regulating apparatus for controlling the operation of the battery. on the other4 circuit responds' directly to the, fluctuation ofrload on the iii-'st circuit to prevent?. the effect of this fluctuation. from being felt on the second circuit. This and ot-he'robjects of the invention will be lmore vclearly seen by reference tothe accompanymg diagram m whichv A1 is a source of electrical energy of one kind," as Afor example, three alternating current connectedto 'the :circuit 3'-.4. 5, while A is a sourceof electrical'energy of Atoi kncgvjn devicgzf consisting of r two piles.: of f carbon-dSkS connected f in. seriesf acrossjthe "I0 :terminals ofthe-betterave@presume-the two '.yaried means `:off a .leve*. controlled "by a solenoid4 S connected finto 'the-.conductor 2 "and 'current 'poi-tional to; the 'Qutputfof th'e generator: A, I5 Froin "tliefniiddle-fpoint of the circuit between the two" 'carbon' piles .is -a connection;

4'load on' this 'circuitlft This exciter maybe -of' the type' described -n Patent- #870,150 issued to me underglate 'of Novemberth, 1907, orit may be made"-to frespond' to '-95 changes ofcondition ou'the alternating cur-v rent circuit in any of the variousways well current for exciting they' field winding.. F

of the transforming apparatus'jlt, end alsol' 1.0.0

for exciting the fieldfWDllgfFL-fof:the vbooster C, these. two-field yvindingsas'shown being connected -in parallelzs -Thef action ofv this exciter isv in lgeneral "similart0 that... already described inconnectionwith'f th'e load ontlie source 'A1 -will vary-the eifrcitaf-.j -v tion 'of the field windingF to 'causejthe battery to charge or discharge to c ompensate forfthel fluctuation of load onthe alt'erf'fl() matingv current circuit. A t the saine thecliangeof'excitation field winding Fil circuit' 1 2. The opeuation of the apparatu's will then be as follows: If an increase of load occurs at L2, a small part of this increase passing through the solenoid S will vary the pressure on the carbon piles of the carbon regulator D and cause a flow of current in the booster field F2, producing a. booster voltage suitable for causing t-he battery B to discharge and relieve the circuit 1-2 of the greater part of the-increase of load. 4This discharge will cause the battery voltage to drop and would ordinarily tend "i toproduce a iow of' current from the source A1 vthrough the transforming apparatus R, thus "increasing the load on the source A1. This-increase of load would bring the exciter `lEl"`'i`iit' operation, modifying the action of the' transforming lapparatus R by a change of current in tlie'field winding F* so as to partially revent theftdisturbance from'reachingthe circuit -Af-; but with the apparatus'as shown the' change of current in the field winding F3 which occurs simultaneously with that in the field winding Fzfwill produce the desired effect oh the transforming apparatus R and wholly. prever'itA the disturbance from reaching the' circuit 3-4-5 if the ap aratusis properly designed.' It will thusl e seen that each field regulating device controls the fields of bot-h battery controlling 'apparatus to take care of the load fluctuations on its own circuit. f'

If the load at L1 is nota fluctuating load the exciter El vand the two field windings Fi and F1 could be omitted and the trans-V forming apparatus R could be utilized to transmit al constant amount of energy between the v'two circuits in either direction. In this case the -field winding F3 by'its effect on the transforming apparatus R would prevent fluctuations of battery voltage, due to its charge and discharge in :effi load on the circuit 1-2 from i., u, .g :i c.. urbanen on the circuit 34-5. 1"Vithout this field winding F3 Athe exciter El and the field coil 1*" or some equivalent would be necessaryto compensate for the effect of-fluctuations of battery voltage even though the load L1 were absolutely constant.

It will be obvious that modifications may be made in the details of the apparatus without. 'departing from the spirit of the invention.

`What I claim therefore and desire to securejby Letters Patent fis,

1.111 combination two independent electric'` circuits, a storage battery operatively arranged with respect to both circuits. independentmeans for controlling the transfer of energy between each circuit and ne battery,"and a' regulating device'rcsponsive to changes of electrical condition on one of the circuits and adapted tig/regulate the operation o'f both controlling means.

' 1n 'combination' two independent electric circuits, a storage battery operatively arranged with respect to both circuits, and a regulating device responsive to changes of electrical condition on one of the circuits and adapted to control the charge and discharge of therbattery with respect to that circuit and simultaneously to neutral- -ize the efl'ect on the other circuit of said charge and discharge.

3. In combination two independent electric circuits, a storage battery operatively arranged with respect to both circuits, a field -coil for controlling the 'operation-of the battery in respect to Aone of the-circuits, another field coil for controlling the opera-Il tion of the battery with respect to thebther circuit, and a 4de Tice responsive to the 'electrical condition of one of the circuits for simultaneously varying the current in both coils.

4. In combination two independent electric circuits, a separate source of electrical energy foreach circuit, a-storagebattery operatively--'arranged with iespectto bot circuits, independent means for cont-rolling the transfer of energy between each 'circuit and the 'batzery, and a regulating device responsive to changes of electrical condition on one vof the. circuits and adapted to regulate the operation of both controlling means.

5. In combination two independent electric circuits. a .separate source of electrical energy for each circuit. a storage battery operatively arranged with respect to both circuits, and a regulating device responsive to changes of electrical condition on one of the circuits and adapted to control the charge and discharge of the battery with respect to that circuit and simultaneously to- 'neutralize the effect on the other circuit Aof spect to the other circuit, and a device refspoiisive to the electrical condition of one of the circuits for simultaneously varying the current in both coils.

7, ln combination an alternating current circuit. a direct current. circuit, a storage battery. connections for transmitting energy between the battery and each of said cir-1 cuits. independent means for controlling said transter ot energy to and from each circuit, and a regulating device responsive to. changes of electrical condition on one operation of both controlling means.'

8. In combination an alternating current circuit, a direct current circuit, 'a storage battery, connections for transmitting energy between. the battery and each 'of said cir cuits, and a regulating device responsive to changes of electrical condition on one f of said circuits and adapted to control they charge and discharge of the battery with respect to that circuit and simultaneously Vto i neutralize the effect on the other circuit ofsaid charge and' discharge.

9. In combination an alternating current circuit, and its source, a direct current circuit and its source, a storage' battery, connections for transmitting energy between the battery and each of said circuits, independent means for controlling said' transfer of energy to and from each circuit, and a regulating device responsive to. changes of electrical condition on one of. the circuits and adapted to regulate the operation of both controlling means. 1

10. In combination an alternating current'4 circuit, and its source, a direct current circuit and its source, a storage battery, con-l nections for transmitting energy between the battery and each of said circuits, and a regulating device responsive to Vchanges of electrical condition on one of ysaid circuits and adapted to control the charge and discharge of the battery with `respect to that, circuit and simultaneously to neutralize the effect on the other circuit of said charge and discharge.

l1. In combination an alternating current circuit, a direct current circuit, a storage battery, connections for transmitting energy between the battery and each" of said circuits, a field coil for controlling the operation of the battery in resept to the alternating current:- circuit, another ield coil for controlling the operation of the batteryin respect to the direct current circuit, and a device responsive to the electrical condition of oneof the circuits for simultaneously varying the current in both coils.

l2. In combination an alternating current circuit and its source, a direct current circuit and its source, a storage battery, con` nections :for transmitting energy between the battery and each of said circuits, a lield coil for controlling the operation of the battery in respect to the alternating current circuit, another field coil'icor controlling the operation Aof the battery in respect to 'the direct current circuit, anda device responsive to the electrical condition of one oit.` the circuits for simultaneously varying 'the current in both coils.

13. In combination two independent electric circuits, fa separate source of electrical energy for each circuit, a storage battery operatively arranged with-respect to both circuits, independent means Ifor controlling the transfer of energy between each circuit andthe battery, anda regulating device rel sponsive to changes of load `on onejof the sources and adapted to regulate the operation of both controlling means;

14. In combination two independent electric circuits,4 a separate sourcel of electrical energy for eachV circuit, a storage battery operatively arranged with respect to both "circuits, and a regulating device responsive to changes of load on one of the sourcesand adapted to control the charge andvdischarge of the battery with respect to the circuit supplied by that source and simultaneously to neutralize the'ei'ect on the. other circuit of said charge and discharge.

` y, 15. In combination two independent elecltric circuits, a separate source of electrical venergy for each circuit, a storage batte ,operatively arranged with respect to bo circuits, a field coil for controlling the op eration of the battery in respect to one of the circuits, another field coll forcontrolling the operation of the' battery with re- 'spect to the other circuit, and ay device -responsive to changes of load on one of the sources for simultaneously varying the current in both coils.

- In testimony whereof I have hereunto signed my name.

, JOSEPH L, wooDBRinoE. Witnesses: l.

FRANK E. FRENCH, A. B. SLOUGHTON. 

